Emasculator



Oct. 23, 1934.

s. w. THOMAS 1,978,150

EMASGULATOR Filed Jan. 15, 1954 2 Sheets-Sheet l Ufa/mar mffidmasAttomey S. W. THOMAS Oct. 23, 1934.

EMASCULATOR Filed Jan. 15, 1954 2 Sheets-Sheet 2 UNITED STATES PATENTOFFICE EMASCULATOR Spencer W. Thomas, Trenton, Nebr.

Application January 15,

1934, Serial No. 706,722

3 Claims. (Cl. 128-306) This invention relates to an emasculating toolor implement employed for castrating certain animals.

Needless to say the art to which the invention relates isalready welldeveloped and characterizedby various types and styles of emasculatorsdesigned for accomplishing the desired results by performing a bloodlessoperation and to overcome distress and attendant subsequent injuries.The present invention isin the nature of a novel contribution to thisline. of endeavor regarded as unique and practicable in that it embodiescertain features of construction and refinement calculated to permit itto better fulfill the function coordinated.

' for which the parts are expressly designed and Briefly stated thepreferred embodiment of the invention embodies a handle provided with anespecially shaped which the cord is cord abutment claw againstfirmlypressed and crushed through the instrumentality of a rotarycam-like compression element swingable through a predetermined path. andthrough the action tuating levers q I structurally spe turnable on amovable pivot of a manually controlledacaking, novelty is predicatedupon the special configuration andxmounting of the swingable rotarycrushing cam and its particular mounting and association witha companion cord holding or restraining claw.

A further feature is based upon the adoption and useof a variableactuating lever adjustable to promote the refined and sensitive crushingand locking action desired. r

Other features and advantages will become more readily apparent from thefollowing description and drawings.

In the drawings:

Figure 1 is an elevational view of the preferred embodiment of theinvention showing the parts 'in non-clamping position.

. Figure 2 is a view like Figure 1 showing the parts adjusted to theposition assumed by said. parts when the cords of the testicles arebound and severed.

a pivot or fulcrum for the hand adjusted actu ating lever.

Figure 5 is a fra elevational view of gmentary. detail sectional end theforked end of said lever.

Figure 6 is a detail view of the crushing cam. Figure 7 is a detailsection on the line '7--7 of Figure 2.

Figure 8 is a detail sectional view of a concavoconvex guard washer. V

Referring now to the parts by detailing reference characters andconsidering them in the order of prominenceof size attention first comesto what may be designated as a handle 9 formed at its outer end with anintegral O-shaped'head 10. One terminal end 11 of the head is hereinafter referred to either as a jaw or claw and it will be observed thatthis isgradually decreased in dimension toward its extremity and ofthecross sectional shape shown in Figure "7 so as to provide a roundedabutment edge 12 against which the testical cord (not shown) is firmlyclamped. for severing at the time of performing the operation.Cooperable with this abutment surface 12 is a correspondingly shapedmarginal portion 13 of the substantially heart-shaped crushing cam 14.This cam is a vital part of the construction andis located between thejaws 11 and 15 of the head. In fact it is confined to travel apredetermined path,vthe path being governed by the attaching links 16.These links are of curved form of appropriate length and attached to thehead as at 17 They are obviously disposed at opposite sides of the headand pivotally connected at their upper ends concentrically as at 18 tothe cam 14. v

The cam 14 is rotated and swung through its predetermined path ofmovement by way of a manually. controlled actuating lever 19. The upper.end of this lever is forked and the arms of the fork terminate inwhatimay be distinguished as segmental ears 20. These earsstraddle andare pivotally attached to the jaw 15. Also they are pivotally attachedas' indicated at 21 to the pendent portion of the ,swingable cam. This.serves to bodily move and rotateflthe cam in the requisiteiprogressivemanner. The pivots 21 are located eccentrically to' the pivot 18 so thatwhe nthese pivots 21 travel to a predetermined pointand the lever passesbeyond the, "dead .centerfjthe cam is locked in its cord crushing andbinding position until voluntarily released by the attendant. e I

In order to regulate and adjust the activity and sensitiveness ofoperation of the lever 19 itis adjustably pivoted on the free end of thejaw .15.. This is accomplished by the use of a journal unit of the typeshown at 22' in Figure .4. Here the main journal 23 is mounted'in abearing'in the jaw 15. It willbe noticed that cogs 24 are splined orkeyed eccentrically to the journal and at the ends of the journal arescrew threaded as indicated at 25 and 26 to accommodate a returning nut27 and a thumb nut 28 as shown in Figure 3. These nuts serve to hold andplace the concavo-convex guard washers 29 and to keep the partsassembled. It will be noticed that the ears 20 of the fork arms have theedges of the openings formed with teeth 30 as shown in Figure 5 andthese teeth surround and coact with the teeth of the cog whereby topermit the leverage to be varied and regulated by adjusting the teeth 30with respect to the teeth of the cog. By this arrangement the properregulatory action of the travelling rotary cam 14 is produced. Thenumeral 31 merely designates a stop screw which can be employed if andwhen desired.

With the tool occupying the position shown in Figure l the parts are inineffective position ready for application and operation. The tool issuificiently small to permit it to be practically operated with onehand. Hence by grasping the handle 9 and simultaneously grasping thelever 19 said lever can be moved toward the handle 9 in aplier-likeaction. In so doing, the crushing cam 14' turns on itspivot 18 throughthe action ofthe, pivotal connections 21. This bodily swings the camand. guiding links 16 to bring the cam into. an effective clampingposition. In fact it brings the edges 13 and 12 into crushingrelationship against the cord and accomplishes this in a progressiverolling pressure action. Hence the cord is properly restrained, heldagainst displacement and satisfactorily severed to accomplish thedesired castrating result.

Summarizing the features of the invention it is believed, that noveltywill be found in these parts. First, it is thought to be new to providea handle 9 having. the (J-shaped head 10 with one of the jaws 11'fashioned to provide a restraining. and' abutment element for the cordand for satisfactory cooperation with the travelling cam 14.. Then too,the idea of using the opposed jaw 15. as a carrier and support for theadjustable actuating. lever 19 is believed to be unique- The. specialcoordination of the cam 14 with a head. 10 through the instrumentalityof. the guiding links 16 is important. The special. heart-shaped.configuration of the cam 14 to provide for the progressive rollingpressure and thrust action is, ingenious. The special forkedconstruction ofthe lever 19 where ears 20 are formed to produce thedesired travelling and.

rolling eiiect for the cam 14, as well as the regulatory. mounting ofthe cars 20. on the jaw 15 is a mechanical refinement. All of theseparts. have been carefully selectedand are. joined. to. provideforsmoothnonejerky action calculated to provide the operation withoutdistress to the animal. Most, of. allLI desire to emphasize the lockingfeature offthe cam, whichguards against, slippage and accidentaldisplacement of the'tool whilein operation. i

It is thought that persons skilled in the art to which the inventionrelates will be able to obtaina clear understanding of the inventionafter considering the description in connection with the drawings.Therefore, a, more .lengthy description is regarded as unnecessary.

Minor changes inshape, size, and rearrangement of details comingwithinthe field of the invention claimed may be resorted to in actualpractice, if desired.

Having thus described my invention, what I claim as new is:

1. An implement of the class described comprising a handle having a headat one end thereof, said head having a curved jaw at one end thereof,the inner edge of which is of arcuate form, an arm extending from theother end of the head, a member located between the arm and jaw andhaving an arcuate edge for cooperating with the arcuate edge of the jaw,a link connecting said member with the head, a handle pivoted to the armand pivotally connected with the member for moving the member toward andaway from the jaw, the arcuate edges of the jaw and member being soformed that the member first engages the outer end of the arcuate edgeof the jaw and then the arcuate edge of the member approaches thearcuate edge of the jaw.

2. An implement of the class described comprising a handle, asubstantially C-shaped head connected with one end of the handle toprovide a jaw having a substantially concave inner edge and a supportingarm, a member located between the jaw and arm and having a convex edgefor cooperating with the concave edge of the jaw, a link having one endpivoted to the head adjacent the base of the'jaw and its other endpivoted to the member, the last mentioned pivot being substantiallyconcentric to the convex edge, a second handle having a substantiallyT-shaped head, one end of which is pivoted to the free end of thesupporting arm and the other end is pivoted to that end of the memberwhich is opposite the convex edge, said convex edge and concave edgebeing so formed that as the member is moved to crushing position by thesecond handle, a portion of the convex edge will first engage the outerend of the concave edge and then the convex edge of the member movestoward the concave edge of the jaw with a. rolling motion.

3. An implement of the class described comprising a handle, asubstantially C-shaped head connected with one end of the handle toprovide a'jaw having a substantially concave inner edge and a supportingarm, a member located between the jaw and arm and having a convex edgefor cooperating with the concave edge of the jaw, a link having one endpivoted to the head adjacent the base of the jaw and its other endpivoted to the member, the last mentioned pivot being substantiallyconcentric to the convex edge, a second handle having a substantiallyT-shaped head, one end of which is pivoted to thefree end of thesupporting arm and the other end is pivoted to that end of the memberwhich is opposite the convex edge, said convex edge and concave edgebeing so formed that as the member is moved to crushing position by thesecond handle, a portion of the convex edge will first engage the'outerend of the concave edge and then the convex edge of the member movestoward the concave edge of thejaw with a' rolling motion, the pivotwhich connects the second handle to the supporting arm including a pinhaving an eccentrically arranged toothed wheel connected therewith andsaid supporting arm having an opening for receiving the pin with aportion of the opening enlarged eccentrically and its wall toothed toreceive the teeth of the pin.

SPENCER W. THOMAS.

